Recommended Timeout Mechanism For At Commands Processed By A Host - Huawei ME936 Application Manual

HUAWEI ME936 LTE M.2 Module
Application Guide
Figure 1-1 AT command processing sequence diagram
1.3.3 Recommended Timeout Mechanism for AT Commands
Processed by a Host
A module processes AT commands in series. Do not send another AT command
before the result for the current command is returned or the current command times
out (except when the current command is an interruptible AT command). The
following table lists AT command timeout durations (starting from the time when an
AT command arrives at a port).
Table 1-1 AT command timeout duration
AT Command
General AT commands
AT+CMGS (used to send PDU messages)
AT+COPS=? (used to search for networks)
After an AT command times out, it is recommended that the host check whether the
module is functioning normally. The following procedure is provided for your
reference:
Issue 02 (2017-12-11)
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AT command 1
Process AT
command 1
AT command 2
Process AT
command 2
Return results of AT command 2
Return results of AT command 1
AT command 3
Process AT
command 3
Return results of AT command 3
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Timeout Duration
10s
60s
180s
Introduction
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